⟩ Which of the following is an example of a buffer system
1. H2CO3 and water
2. H2CO3 and NaHCO3
3. NH3 and N2
4. NaCl and KCl
Answer: H2CO3 AND NaHCO3
1. H2CO3 and water
2. H2CO3 and NaHCO3
3. NH3 and N2
4. NaCl and KCl
Answer: H2CO3 AND NaHCO3
During given week a programmer spend 1/4 of his time preparing charts,3/8 of his time for coding,rest of his time for debugging the programs.If he had 48 hrs during the week how many hours did he spend debugging the program?
How many numbers must be selected from the set {1, 2, 3, 4, 5, 6} to guarantee that at least one pair of these numbers add up to 7?1 point2345?
If a 16 story building has 12000ft on each floor. Company A rents 7 floors and company B rents 4 floors. What is the number of square feet of unrented floor space?
What types of tools or measuring devices do you use related to math?
What types of math do you use? Re Calculus, Algebra, Fractions?
The bit strings for the sets are 1111100000 and 1010101010. The union of these sets is ____________. a) 1010100000 b) 1010101101 c) 1111111100 d) 1111101010
The set difference of the set A with null set is ________. a) A b) null c) U d) B
Let Ai = {i, i+1, i+2, …..}. Then set {n, n+1, n+2, n+3, …..} is the _________ of the set Ai. a) Union b) Intersection c) Set Difference d) Disjoint
The complement of the set A is _____________. a) A - B b) U - A c) A - U d) B - A
The difference of {1, 2, 3} and {1, 2, 5} is the set _________. a) {1} b) {5} c) {3} d) {2}